ALT picture of profile of a horse drawing divided into three segments. left segment is labeled "detector design" and shows the back of the horse (tail and legs) with shading and very well drawn and looks very realistic. middle segment is labeled "real detector" and has no shading but some outlines and a very details that looks like they tried (high-school art class) for one leg of the horse plus the body. the right segment is labeled "simulation" and looks like a 6-year old kid drew it, with a smiley face, winnie-the-pooh bear ears, and a stick figure leg.